Pilcomayo is a department in the Argentine province of Formosa.
Its capital is Clorinda, the second most populous city in the province.
Pilcomayo has a surface of 5,342 km2 and a population of 78,114 according to the 2001 census [INDEC].
Other communities in Pilcomayo include Laguna Blanca, Laguna Naick Neck, Riacho He-Hé and Siete Palmas.
This article about a place in Formosa Province, Argentina is a stub.